Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed669ff14268de0…

MALICIOUS

PDF

46.6 KB Created: 2020-08-19 20:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5708c0a50a4c4976c6deb018dc4beca SHA-1: 887aee7915f7cc64385362458cdd9faa59a291ba SHA-256: bed669ff14268de0b41ff6549c0f0fcb9b220dbcce82b423dbd0b9e597ee0d7e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=antidoto+de+heparina+pdf', suggesting a lure to a malicious site. The presence of many external PDF links also indicates a link farm, likely for SEO poisoning or traffic redirection. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=antidoto+de+heparina+pdf In PDF document text
    • http://kagiwam.artfromalice.com/uploads/1/3/0/7/130776208/87435e8.pdfIn PDF document text
    • http://files.jjjohnsonauthor.com/uploads/1/3/1/4/131437268/lotoxaboxubuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/20304414770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3973/files/celsius_to_fahrenheit_conversion_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3345/9879/files/27285818989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/pobebutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fenajowogotuxukat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/15389286485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/phonetic_alphabet_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7086/5060/files/30304062651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4532/0861/files/59307371151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/88110481321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/25710333353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/bonagewax.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000726d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726D 4908 bytes
SHA-256: cf7f6f1f9e7f4b1a81f7110dc36680ad5c369f7e6e3558c460447b860bbc2abd
font_01_sfnt_off00008315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8315 13072 bytes
SHA-256: 6b02f5df8fe1a9bd7dc797b5a67879b2dcc6446c11020d4d48246330177e43c1

Open this report in the interactive analyzer, or submit your own file for analysis.